Honda · 2018 and later
Honda Gold Wing (new generation) darkside tire sizes
Stock rear on the Honda Gold Wing (new generation) (2018 and later) is 200/55R16. Riders report running 195/55R16 as a car tire on the rear.
Stock front130/70R18
Stock rear200/55R16
What riders report
Rear · car tire195/55R16
Bridgestone DriveGuardA rider reports it fits fine, since it's narrower than stock, and says the 2018-and-later swingarm has a cutout for the tire. Reports for this generation are still thin.
Car sizes close to stock, on paper
These car tire sizes come within 3 percent of the stock 200/55R16 rear in overall height, by the math alone. They are not rider-tested. Width, rim fit and clearance on your bike still decide what actually works.
Before you buy
Stock sizes come from published fitment listings and owner forums. Check the size on your current tire or the label on your bike, then read the big questions and the mounting guide.